tesuturi Flashcards

1
Q

tip de tesut cu vascularizatie absenta

A

epitelial

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2
Q

tesutul epitelial se divide prin

A

mitoza

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3
Q

ancorarea t epitelial de cel conjunctiv se face printr o membrana

A

bazala

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4
Q

membrana bazala e alcatuita din

A

componente non celulare
glicoproteine- ALE EPITELIULUI
fibre de colagen- ALE T CONJ

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5
Q

tipuri de jonctiuni

A

stranse
aderentiale (desmozomi)
“gap”- comunicante

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6
Q

prezinta si membrana ingrosata tpul de jonctiune

A

aderentiala = desmozomi

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7
Q

ce tip de jonctiune lipseste in epitelii

A

gap = comunicante

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8
Q

jonctiunile stranse leaga celulele intre ele prin? (benzi)

A

benzi de proteine

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9
Q

jonctiunile stranse se formeaza prin cuplarea?

A

lipoproteinelor din spatiul intercelular

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10
Q

rol jonctiuni stranse

A

blocheaza trecerea subst printre celule

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11
Q

jonc stranse se distribuie in?

A

siruri

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12
Q

desmozomii sunt ce fel de jonctiuni?

A

aderentiale punctiforme

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13
Q

ce fac fibrele intracelulare de cheratina in momentul atingerii dimensiunilor electronomicroscopice in cazul desmozomilor?

A

ancoreaza glicoproteine transmembranare

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14
Q

marimea spatiului intercelular in jonctiunile aderentiale?

A

24nm

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15
Q

jonctiunile gap= comunicante permit comunicarea de ce tip?

A

electrica

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16
Q

marimea spatiului intercelular la jonctiunile gap?

A

2nm, mult mai mic

17
Q

jonctiuni gap unde

A

musculatura neteda si cardiaca

18
Q

absorb gazele si nutrimentele ce fel de tesuturi

A

epiteliale

19
Q

ce tip de tesuturi transporta mucususul, fluide, nutrimente

A

epiteliale

20
Q

produc hormoni si excreta produsi reziduali (rinichi) care tesuturi

A

epiteliale

21
Q

celulele carui tip de epiteliu sufera modificari de forma la distensie

22
Q

glande cu secretie mucoasa sunt?

A

celulele caliciforme, unele celule epiteliale din tractul respirator, digestiv, reproducător

23
Q

gl cu sec seromucoasa

A

glandele salivare

24
Q

gl merocrine

A

glandele sudoripare, salivare

25
ce e o glanda apocrina?
un tip de glandă merocrină ale cărei celule eliberează produșii de secreție prin exocitoză și rămân intacte
26
exemple de glande apocrine
glandele ceruminoase, mamare, unele tipuri de glande sudoripare
27
gl horocrine
glandele sebacee din piele
28